Example of using A Laravel Controller to automatically handle validation exceptions and auth failures

BaseController.php

<?php

class BaseController extends Controller
{
    
    public function callAction($method, $params)
    {
        $ajax = Request::isAjax();
        try {
            return parent::callAction($method, $params);
        } catch(ValidationException $exception) {
            return $this->handleValidationException($exception, $ajax);
        } catch(AuthException $exception) {
            return $this->handleAuthException($exception, $ajax);
        }
    }
    
    protected function handleValidationException(ValidationException $exception, $ajax = false)
    {
        if($ajax) {
            return Response::json(array('errors' => $exception->errors()), 422);
        } else {
            return Redirect::back()->withInput()->withErrors($exception->errors());
        }
    }
    
    protected function handleAuthException(AuthException $exception, $ajax = false)
    {
        if(Request::isAjax()) {
            return Response::json($exception->getMessage(), 403);
        } else {
            App::abort(403);
        }
    }
}

FooController.php

<?php
public class FooController extends BaseController
{
    public function __construct(FooService $foos)
    {
        $this->foos = $foos;
    }

    public function store()
    {
        //throws ValidationException on failure
        $foo = $this->foos->create(Input::all());
        return Redirect::route('foos.show', $foo->id);
    }
    
    public function update($id)
    {
        //throws ValidationException on failure
        //throws AuthException if the current user does not have access to a the relevant resource
        $foo = $this->foos->findAndUpdate($id, Input::all());
        return Redirect::route('foos.show', $foo->id);
    }
}

Nice snippet, thanks

brilliant! been looking for a solution to not being able to catch the new $request->validate() style validation with Laravel 5.5. This works perfectly.